Excavating – Ditcher – Wheel excavator
Patent
1984-04-16
1986-09-23
Burr, Edgar S.
Excavating
Ditcher
Wheel excavator
37142R, 37189, 172 98, 172108, 172704, 403 4, E02F 508
Patent
active
046127151
ABSTRACT:
The ditching apparatus includes a prime mover (A) and an arm assembly (B) for selectively positioning a ditching head (C). The ditching head includes a rotatably mounted circular supporting member (34) to which a plurality of mounting brackets (44) are mounted transversely and radially about an axis of rotation (36). A plurality of blades (50) are mounted to the brackets by a plurality of bolts (84). Each blade has first and second faces (66, 68) which are disposed symmetrically about a face axis (78). The faces terminate at first and second edges (52, 54) which are disposed symmetrically about an edge axis (56) and at first and second ends (60, 62) which are symmetric about an end axis (64). The blade includes a plurality of mounting apertures (80, 82) which are symmetrical with respect to both the end and edge axes. In this manner, the blade is reversible about both the end and edge axis to be mounted selectively in any one of four positions. This enables each of the four corners of the blade to be positioned to receive the heaviest wear, thus increasing blade life substantially fourfold.
REFERENCES:
patent: 2319464 (1943-05-01), Massa
patent: 2832275 (1958-04-01), Kimsey et al.
patent: 3453756 (1969-07-01), Schroeder
patent: 3648391 (1972-03-01), Kabay et al.
patent: 3878905 (1975-04-01), Schaumann
patent: 4069604 (1978-01-01), Stepe
"Rotary Ditch Cleaner", Cartner Corp.
"Versa Ditcher", Terrain King Corp.
"Rotary Ditcher", Tiger Corp.
Burr Edgar S.
Cohen Moshe I.
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